Air quality in Beijing was rated as poor more than 5 million cars in the capital.
A. except for
B. regardless of
C. due to
D. in spite of
网友回答
A. except for
B. regardless of
(答案→)C. due to
D. in spite of
解析：句意：北京的空气质量被认为很差因为在首都有五百多万量汽车。except for除了； regardless of不管；due to因为；in spite of尽管。结合句意选C。
考点: 考查介词短语的用法。